xref: /freebsd/stand/libofw/ofw_time.c (revision 2ed3236082a4473c1da8f72c1ebc071a7b54321f)
1 /*-
2  * Copyright (c) 2000 Benno Rice
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29 
30 #include <stand.h>
31 #include "openfirm.h"
32 
33 time_t
34 time(time_t *tloc)
35 {
36 	int secs;
37 
38 	secs = OF_milliseconds() / 1000;
39 	if (tloc)
40 		*tloc = secs;
41 	return secs;
42 }
43 
44 time_t
45 getsecs(void)
46 {
47 	time_t	n = 0;
48 	time(&n);
49 	return n;
50 }
51 
52 void
53 delay(int usecs)
54 {
55 	int	msecs, start;
56 
57 	msecs = usecs / 1000;
58 	start = OF_milliseconds();
59 
60 	while (OF_milliseconds() - start < msecs);
61 }
62